A computational fluid dynamics simulation of a supersonic chemical oxygen-iodine laser

K. Waichman; V. Rybalkin; A. Katz; Z. Dahan; B. D. Barmashenko; S. Rosenwaks

doi:10.1117/12.739080

26 April 2007 A computational fluid dynamics simulation of a supersonic chemical oxygen-iodine laser

K. Waichman, V. Rybalkin, A. Katz, Z. Dahan, B. D. Barmashenko, S. Rosenwaks

Proceedings Volume 6346, XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; 63462D (2007) https://doi.org/10.1117/12.739080
Event: XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 2006, Gmunden, Austria

Abstract

The dissociation of I₂ molecules at the optical axis of a supersonic chemical oxygen-iodine laser (COIL) was studied via detailed measurements and three dimensional computational fluid dynamics calculations. Comparing the measurements and the calculations enabled critical examination of previously proposed dissociation mechanisms and suggestion of a mechanism consistent with the experimental and theoretical results. The gain, I₂ dissociation fraction and temperature at the optical axis, calculated using Heidner's model (R.F. Heidner III et al., J. Phys. Chem. 87, 2348 (1983)), are much lower than those measured experimentally. Agreement with the experimental results was reached by using Heidner's model supplemented by Azyazov-Heaven's model (V.N. Azyazov and M.C. Heaven, AIAA J. 44, 1593 (2006)) where I₂(A') and vibrationally excited O₂(a¹&Dgr;) are significant dissociation intermediates.

Citation Download Citation

K. Waichman, V. Rybalkin, A. Katz, Z. Dahan, B. D. Barmashenko, and S. Rosenwaks "A computational fluid dynamics simulation of a supersonic chemical oxygen-iodine laser", Proc. SPIE 6346, XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 63462D (26 April 2007); https://doi.org/10.1117/12.739080

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